Kyocera KM-1620 Service Manual page 32

Adjusting the leading edge timing
1. Run maintenance mode 034.
Press the image quality mode key until "Text" is lit. (group 1)
Press the exposure key until "exp1" is flashing. (mode 6)
Make a test copy in the duplex mode to check the image. If an adequate image cannot be obtained, carry out the
following adjustment.
2. If a copy example a is obtained, increase the adjustment value.
If a copy example b is obtained, decrease the adjustment value.
Setting range: -5.0 - 10.0
3. Make a test copy again.
4. Repeat steps 2 and 3 until an adequate image is obtained.
Adjusting the center line
1. Run maintenance mode 034.
Press the image quality mode key until "Text" and "Photo" are lit. (group 2)
Press the exposure key until "exp1" is flashing. (mode 6)
Make a test copy in the duplex mode to check the image. If an adequate image cannot be obtained, carry out the
following adjustment.
2. If a copy example a is obtained, increase the adjustment value.
If a copy example b is obtained, decrease the adjustment value.
Setting range: -8.0 - 10.0
3. Make a test copy again.
4. Repeat steps 2 and 3 until an adequate image is obtained.
Copy example a
Adequate image
Copy example a
Adequate image
Copy example b
Figure 1-3-25
Copy example b
Figure 1-3-26
2C9-1
1-3-13